diff options
Diffstat (limited to 'Source/AI/navmeshparameters.cpp')
| -rw-r--r-- | Source/AI/navmeshparameters.cpp | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/Source/AI/navmeshparameters.cpp b/Source/AI/navmeshparameters.cpp new file mode 100644 index 00000000..d34a5a1b --- /dev/null +++ b/Source/AI/navmeshparameters.cpp @@ -0,0 +1,148 @@ +//----------------------------------------------------------------------------- +// Name: navmeshparameters.cpp +// Developer: Wolfire Games LLC +// Description: +// License: Read below +//----------------------------------------------------------------------------- +// +// +// Copyright 2022 Wolfire Games LLC +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +// +//----------------------------------------------------------------------------- +#include "navmeshparameters.h" + +#include <Utility/assert.h> + +#include <tinyxml.h> + +#include <string> + +using std::string; + +NavMeshParameters::NavMeshParameters() : +generate(true), +m_cellSize(0.3f), +m_cellHeight(0.2f), +m_agentHeight(1.7f), +m_agentRadius(0.4f), +m_agentMaxClimb(1.5f), +m_agentMaxSlope(60.0f) { + +} + +void WriteNavMeshParametersToXML(const NavMeshParameters& nmp, TiXmlElement* elem) { + LOG_ASSERT(elem); + //Make sure our assumptions about how many elements there are stays true for future changes. + // Padding makes the struct 7*4 bytes big rather than 6*4 + 1 + LOG_ASSERT(sizeof(float)*7 == sizeof(NavMeshParameters)); + + elem->SetAttribute("generate", nmp.generate ? "true" : "false"); + elem->SetDoubleAttribute("cell_size", nmp.m_cellSize); + elem->SetDoubleAttribute("cell_height", nmp.m_cellHeight); + elem->SetDoubleAttribute("agent_height", nmp.m_agentHeight); + elem->SetDoubleAttribute("agent_radius", nmp.m_agentRadius); + elem->SetDoubleAttribute("agent_max_climb", nmp.m_agentMaxClimb); + elem->SetDoubleAttribute("agent_max_slope", nmp.m_agentMaxSlope); +} + +void ReadNavMeshParametersFromXML(NavMeshParameters& nmp, const TiXmlElement* elem) { + LOG_ASSERT(elem); + //Make sure our assumptions about how many elements there are stays true for future changes. + // Padding makes the struct 7*4 bytes big rather than 6*4 + 1 + LOG_ASSERT(sizeof(float)*7 == sizeof(NavMeshParameters)); + + string generate_value; + elem->QueryStringAttribute("generate", &generate_value); + if(generate_value == "false") { + nmp.generate = false; + } else { + nmp.generate = true; + } + elem->QueryFloatAttribute("cell_size", &nmp.m_cellSize); + elem->QueryFloatAttribute("cell_height", &nmp.m_cellHeight); + elem->QueryFloatAttribute("agent_height", &nmp.m_agentHeight); + elem->QueryFloatAttribute("agent_radius", &nmp.m_agentRadius); + elem->QueryFloatAttribute("agent_max_climb", &nmp.m_agentMaxClimb); + elem->QueryFloatAttribute("agent_max_slope", &nmp.m_agentMaxSlope); +} + +//adler32 hash +uint32_t HashNavMeshParameters(NavMeshParameters& nmp) { + LOG_ASSERT(sizeof(float)==sizeof(uint8_t)*4); + // Padding makes the struct 7*4 bytes big rather than 6*4 + 1 + LOG_ASSERT(sizeof(float)*7 == sizeof(NavMeshParameters)); + + // "generate" intentionally not included to not force navmesh regen + + uint32_t s1 = 1; + uint32_t s2 = 0; + + s1 = (s1 + ((uint8_t*)&nmp.m_cellSize)[0]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_cellSize)[1]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_cellSize)[2]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_cellSize)[3]) % 65521; + s2 = (s2 + s1) % 65521; + + s1 = (s1 + ((uint8_t*)&nmp.m_cellHeight)[0]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_cellHeight)[1]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_cellHeight)[2]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_cellHeight)[3]) % 65521; + s2 = (s2 + s1) % 65521; + + s1 = (s1 + ((uint8_t*)&nmp.m_agentHeight)[0]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_agentHeight)[1]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_agentHeight)[2]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_agentHeight)[3]) % 65521; + s2 = (s2 + s1) % 65521; + + s1 = (s1 + ((uint8_t*)&nmp.m_agentRadius)[0]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_agentRadius)[1]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_agentRadius)[2]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_agentRadius)[3]) % 65521; + s2 = (s2 + s1) % 65521; + + s1 = (s1 + ((uint8_t*)&nmp.m_agentMaxClimb)[0]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_agentMaxClimb)[1]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_agentMaxClimb)[2]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_agentMaxClimb)[3]) % 65521; + s2 = (s2 + s1) % 65521; + + s1 = (s1 + ((uint8_t*)&nmp.m_agentMaxSlope)[0]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_agentMaxSlope)[1]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_agentMaxSlope)[2]) % 65521; + s2 = (s2 + s1) % 65521; + s1 = (s1 + ((uint8_t*)&nmp.m_agentMaxSlope)[3]) % 65521; + s2 = (s2 + s1) % 65521; + + return (s2 << 16) | s1; +} + |